Improvement in foot-warmers



J. Foot-Warmers.

.B'. 0 RA a,

Patented No v.]1,1873.

No. 144,44s.

Attorneys,

JOHN B. CRAIG, OF PERRYSVILLE, PENNSYLVANIA.

IMPROVEMENT IN FOOT-WARIVlERS.

Specification forming part of Letters Patent No. 144,445, dated November11, 1873; application filed May 5, 1873.

To all whom it may concern Be it known that 1, JOHN B. CRAIG, ofPerrysville, in the county of Allegheny and State of Pennsylvania, haveinvented a new and useful Improvement in Portable Heaters, of which thefollowing is a specification.

My invention is an improvement in the class of portable heatersconsisting of a metal case or box containing a block of soap-stone orother material, which is removed when requiredto be heated. Theinvention consists in an an rangement of ribs and pins for supportingthe block and holding it in place on the cover of the case or box, ashereinafter described.

Figure 1 is a bottom view, and Fig. 2 a vertical section through line asx of Fig. 1.

A is a box or case, preferably of cast-iron, and of polygonal form. B isthe bottom,which is hinged to A on one side, and secured by a linkpassing over the handle or bail C on the other side. D D are pinsattached to the inside of the bottom. E is the heating-block, preferablymade of cast-iron, which has holes in its under side to receive thepins 1) D, and thereby confine it in the center of the heater.

One edge of this block is recessed and has a wire, F, by means of whichthe block may be lifted with a hook, and be put in and taken from theheater.

Both the pins and ribs have important functions, the one to prevent theblock moving about in the box when the latter is being handled orcarried about, and the other to prevent the block coming in contact withthe cover, and thus unduly heating the same, thereby causing injury tothe floor, carpet, or other object. The ribs also allow access of theair that is within the box to the under side of the block.

Having thus described my invention, Iclaim as new and desire to secureby Letters Patent- The bottom B, having the pins D and ribs Gr, combinedwith a block having cavities H to hold said block in the box A, as setforth.

JNO. B. CRAIG.

Witnesses:

HENRY HADLEY, Y CHARLIE C. WALLACE.

ATEN'I OFFIon

